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Relationship between Frontal Gap and Postoperative Stability in the Treatment of Mandibular Prognathism
Joint Authors
Chen, Ker-Kong
Chen, Chun-Ming
Tseng, Yu-Chuan
Hsu, Kun-Jung
Wu, Ju-Hui
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-09-27
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Objectives.
To investigate the correlation between frontal gaps and skeletal stability after intraoral vertical ramus osteotomy (IVRO) for correction of mandibular prognathism.
Materials and Methods.
Thirty-three patients with frontal gaps after IVRO-based mandibular prognathism correction were included.
Three lateral and frontal cephalometric radiographs were obtained: preoperatively (T1), immediately postoperatively (T2), and 2 years postoperatively (T3).
Two linear measurements (menton [Me] and frontal gap) were compared from T1 to T3 (T21: immediate surgical changes; T32: postoperative stability; T31: 2-year surgical change).
Data were analyzed using Pearson’s correlation coefficient and multiple linear regression.
Results.
The T21 mean surgical horizontal change in the Me position was 12.4±4.23 mm.
Vertically, the mean downward Me movement was 0.6±1.73 mm.
The mean frontal gaps were 4.7±2.68 mm and 4±2.48 mm in the right and left gonial regions, respectively.
Postoperative stability (T32) significantly correlated with the amount of setback.
Frontal gaps did not have a significant effect on postoperative stability.
However, multiple regression model (R2=0.341, P=0.017) showed value predictability, especially in the amount of setback.
Conclusion.
Frontal gaps occur after IVRO but have no significant effect on long-term postoperative skeletal stability.
The primary risk factor for postoperative relapse remains the amount of mandibular setback.
American Psychological Association (APA)
Tseng, Yu-Chuan& Hsu, Kun-Jung& Chen, Ker-Kong& Wu, Ju-Hui& Chen, Chun-Ming. 2016. Relationship between Frontal Gap and Postoperative Stability in the Treatment of Mandibular Prognathism. BioMed Research International،Vol. 2016, no. 2016, pp.1-5.
https://search.emarefa.net/detail/BIM-1098652
Modern Language Association (MLA)
Tseng, Yu-Chuan…[et al.]. Relationship between Frontal Gap and Postoperative Stability in the Treatment of Mandibular Prognathism. BioMed Research International No. 2016 (2016), pp.1-5.
https://search.emarefa.net/detail/BIM-1098652
American Medical Association (AMA)
Tseng, Yu-Chuan& Hsu, Kun-Jung& Chen, Ker-Kong& Wu, Ju-Hui& Chen, Chun-Ming. Relationship between Frontal Gap and Postoperative Stability in the Treatment of Mandibular Prognathism. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-5.
https://search.emarefa.net/detail/BIM-1098652
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1098652